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Finding the Fourth Proportional to 171,640.80, 257,509.80 and 53,324.10

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Solution

The fourth proportional to 171,640.80, 257,509.80 and 53,324.10 is: 80,001.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,640.80 : 257,509.80 = 53,324.10 : x
  2. Step 2: Convert to fraction form
    171,640.80/257,509.80 = 53,324.10/x
  3. Step 3: Cross multiply
    171,640.80x = 257,509.80 × 53,324.10
  4. Step 4: Simplify right side
    171,640.80x = 13,731,478,326.18
  5. Step 5: Solve for x
    x = 13,731,478,326.18/171,640.80
  6. Step 6: Final answer
    x = 80,001.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.